The National Weather Service forecasts partly sunny skies here in Cobb County on Sunday, July 9, 2023, with a high near 88 degrees.
The National Weather Service has issued a hazardous weather outlook for Cobb County and other parts of the region due to a Marginal Risk for severe thunderstorms for today and tonight.
What does the extended forecast have in store?
This forecast is centered on Dobbins Air Reserve Base in Marietta.
Today
A 30 percent chance of showers and thunderstorms, mainly after 3 p.m. Partly sunny, with a high near 88. West wind around 10 mph, with gusts as high as 15 mph.
Tonight
Showers and thunderstorms likely before 11 p.m, then showers likely and possibly a thunderstorm between 11 p.m and 1 a.m, then a chance of showers and thunderstorms after 1 a.m. Mostly cloudy, with a low around 69. West wind 5 to 10 mph. Chance of precipitation is 60 percent. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A 30 percent chance of showers and thunderstorms, mainly between 3 p.m and 4 p.m. Partly sunny, with a high near 85. North wind around 5 mph.
Monday Night
Mostly clear, with a low around 65. Northwest wind around 5 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 89. West wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 67.
Wednesday
A 10 percent chance of showers and thunderstorms after 2 p.m. Sunny, with a high near 92.
Wednesday Night
A 10 percent chance of showers and thunderstorms before 8 p.m. Mostly clear, with a low around 71.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 2 p.m. Mostly sunny, with a high near 93.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly before 8 p.m. Mostly cloudy, with a low around 73.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
What was the climate like in the latest reporting period?
The NWS climate summary for metro Atlanta has now been updated with November figures.
In an article entitled What is the Difference between Climate and Weather?, the National Ocean Service describes the difference as follows:
“Weather is what you see outside on any particular day. So, for example, it may be 75° degrees and sunny or it could be 20° degrees with heavy snow. That’s the weather.
“Climate is the average of that weather. For example, you can expect snow in the Northeast in January or for it to be hot and humid in the Southeast in July. This is climate. The climate record also includes extreme values such as record high temperatures or record amounts of rainfall. If you’ve ever heard your local weather person say “today we hit a record high for this day,” she is talking about climate records.
“So when we are talking about climate change, we are talking about changes in long-term averages of daily weather. In most places, weather can change from minute-to-minute, hour-to-hour, day-to-day, and season-to-season. Climate, however, is the average of weather over time and space.”
The climate report for the Atlanta area for the previous month shows how much departure from the average temperatures that month represents. The average temperature for a date is the average over a 30-year period.
| Date | Max temp | Min Temp | Average | Departure from norm | |
| 2023-05-01 | 68 | 50 | 59.0 | -8.3 | 0.00 |
| 2023-05-02 | 73 | 48 | 60.5 | -7.0 | 0.00 |
| 2023-05-03 | 72 | 48 | 60.0 | -7.8 | 0.00 |
| 2023-05-04 | 75 | 50 | 62.5 | -5.6 | 0.00 |
| 2023-05-05 | 64 | 58 | 61.0 | -7.3 | 0.01 |
| 2023-05-06 | 76 | 59 | 67.5 | -1.1 | 0.00 |
| 2023-05-07 | 83 | 61 | 72.0 | 3.1 | 0.00 |
| 2023-05-08 | 86 | 67 | 76.5 | 7.3 | T |
| 2023-05-09 | 85 | 68 | 76.5 | 7.1 | 0.00 |
| 2023-05-10 | 84 | 67 | 75.5 | 5.8 | 0.00 |
| 2023-05-11 | 81 | 67 | 74.0 | 4.0 | T |
| 2023-05-12 | 79 | 67 | 73.0 | 2.8 | 0.23 |
| 2023-05-13 | 86 | 65 | 75.5 | 5.0 | 0.00 |
| 2023-05-14 | 90 | 70 | 80.0 | 9.3 | 0.00 |
| 2023-05-15 | 85 | 70 | 77.5 | 6.5 | 0.06 |
| 2023-05-16 | 88 | 68 | 78.0 | 6.7 | 0.29 |
| 2023-05-17 | 81 | 66 | 73.5 | 2.0 | T |
| 2023-05-18 | 72 | 64 | 68.0 | -3.8 | T |
| 2023-05-19 | 73 | 61 | 67.0 | -5.0 | 0.00 |
| 2023-05-20 | 77 | 65 | 71.0 | -1.3 | 0.56 |
| 2023-05-21 | 80 | 65 | 72.5 | 0.0 | T |
| 2023-05-22 | 70 | 63 | 66.5 | -6.3 | 0.41 |
| 2023-05-23 | 72 | 64 | 68.0 | -5.0 | 0.01 |
| 2023-05-24 | 80 | 65 | 72.5 | -0.8 | 0.00 |
| 2023-05-25 | 81 | 62 | 71.5 | -2.0 | 0.00 |
| 2023-05-26 | 77 | 62 | 69.5 | -4.3 | 0.00 |
| 2023-05-27 | 77 | 60 | 68.5 | -5.5 | 0.00 |
| 2023-05-28 | 79 | 58 | 68.5 | -5.7 | 0.00 |
| 2023-05-29 | 75 | 62 | 68.5 | -6.0 | 0.00 |
| 2023-05-30 | 83 | 61 | 72.0 | -2.7 | 0.00 |
| 2023-05-31 | 79 | 67 | 73.0 | -1.9 | 0.00 |
| Sum | 2431 | 1928 | – | – | 1.57 |
| Average | 78.4 | 62.2 | 70.3 | -0.9 | – |
| Normal | 81.1 | 61.3 | 71.2 | – | 3.56 |
| Observations for each day cover the 24 hours ending at the time given below (Local Standard Time). |
| Max Temperature : midnight |
| Min Temperature : midnight |
| Precipitation : midnight |
| Snowfall : midnight |
| Snow Depth : 7am |
| Daily Data | Observed | Normal | Record Highest | Record Lowest | |
| Max Temperature | M | 85 | 98 in 1895 | 59 in 1967 | |
| Min Temperature | M | 66 | 75 in 1985 | 49 in 1972 | |
| Avg Temperature | M | 75.4 | 86.0 in 1985 | 55.0 in 1967 | |
| Precipitation | M | 0.13 | 1.55 in 1912 | 0.00 in 2022 | |
| Snowfall | M | 0.0 | 0.0 in 2022 | 0.0 in 2022 | |
| Snow Depth | M | – | 0 in 2022 | 0 in 2022 | |
| HDD (base 65) | M | 0 | 10 in 1967 | 0 in 2022 | |
| CDD (base 65) | M | 10 | 21 in 1985 | 0 in 1997 | |
| Month-to-Date Summary | Observed | Normal | Record Highest | Record Lowest | |
| Avg Max Temperature | 84.0 | 84.7 | 96.5 in 1895 | 62.5 in 1967 | |
| Avg Min Temperature | 64.0 | 65.8 | 73.5 in 2011 | 46.5 in 1889 | |
| Avg Temperature | 74.0 | 75.3 | 84.3 in 2011 | 57.5 in 1967 | |
| Total Precipitation | 0.00 | 0.26 | 2.86 in 2001 | 0.00 in 2023 | |
| Total Snowfall | 0.0 | 0.0 | 0.0 in 2023 | 0.0 in 2023 | |
| Max Snow Depth | M | – | 0 in 2022 | 0 in 2022 | |
| Total HDD (base 65) | 0 | 0 | 15 in 1967 | 0 in 2023 | |
| Total CDD (base 65) | 9 | 21 | 39 in 2011 | 0 in 1972 | |
| Year-to-Date Summary | Observed | Normal | Record Highest | Record Lowest | |
| Avg Max Temperature | 69.5 | 67.0 | 71.1 in 2017 | 59.8 in 1895 | |
| Avg Min Temperature | 51.0 | 47.1 | 51.6 in 1880 | 39.6 in 1940 | |
| Avg Temperature | 60.2 | 57.0 | 61.2 in 2017 | 50.0 in 1940 | |
| Total Precipitation | 20.93 | 21.45 | 39.15 in 1929 | 10.91 in 1986 | |
| Total Snowfall (since July 1) | 0.1 | 2.2 | 10.9 in 1936 | 0.0 in 2019 | |
| Max Snow Depth (since July 1) | 0 | – | 8 in 1940 | 0 in 2023 | |
| Total HDD (since July 1) | 1932 | 2529 | 3832 in 1977 | 1690 in 2017 | |
| Total CDD (since Jan 1) | 318 | 318 | 499 in 2019 | 111 in 1997 | |
| Period of Record:Max Temperature : 1878-10-04 to 2023-06-01Min Temperature : 1878-10-04 to 2023-06-01Precipitation : 1878-10-01 to 2023-06-01Snowfall : 1928-12-25 to 2023-06-01Snow Depth : 1928-12-25 to 2023-05-30 |
For much more information on the climate in our area, visit the NWS Climate FAQ for the Atlanta area.
What does the National Weather Service do?
The National Weather Service (NWS) is a part of the National Oceanic and Atmospheric Administration (NOAA).
The NWS describes its role as follows:
“The National Weather Service (NWS) provides weather, water, and climate forecasts and warnings for the United States, its territories, adjacent waters and ocean areas, for the protection of life and property and the enhancement of the national economy.
“These services include Forecasts and Observations, Warnings, Impact-based Decision Support Services, and Education in an effort to build a Weather-Ready Nation. The ultimate goal is to have a society that is prepared for and responds to weather, water and climate events.”
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